Whistle.



No. 754,314. PATENTED MAR. a, 1904. F. L. JOHNSON. WHISTLE.

APPLICATION FILED JUNE 25, 1903.

N0 MODEL.

5| a wanton 1/06 In zoom UNITED STATES Patented March 8, 1904.

PATENT ()EEICE.

WHISTLE.

SPECIFICATION forming part Of Letters Patent N 0. '7 54,314, dated March8, 1904.

Application filed June 25, 1903. Serial No. 163,103. (No model.)

To aZZ whom, it may concern.-

Be it known that I, FREDERICK L. JOHNSON, a citizen of the UnitedStates, residing at Wallingford ,in the county of New Haven and State ofConnecticut, have invented certain new and useful Improvements inWhistles, of which the following is a specification.

This invention relates to whistles designed for call, signal, amusement,and other purposes, and has for its object to provide anovel and uniqueconstruction compact in form, convenient to hold, light, effective inoperation, and susceptible of manipulation to change the sound to admitof variously imitating the notes of birds and animals.

For a full description of the invention and the merits thereof and alsoto acquireaknowledge of the details of construction of the means foreffecting the result reference is to be had to the following descriptionand drawings hereto attached.

WVhile the essential and characteristic features of the invention aresusceptible of modification, still the preferred embodiment of theinvention is illustrated in the accompanying drawings, in which- Figure1 is a perspective view of a whistle embodying the invention. Fig. 2 isa vertical central section thereof. Fig. 3 is a perspective View of thecap and mouthpiece detached from the body of the whistle. Fig. 4 isacross section of the mouthpiece on the line X X of Fig. 3.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

The body of the whistle is indicated at 1 and is closed at its upper endby the top 2, in which is formed opening 3. The mouthpiece 4 projectsfrom the top 2 at such an inclination as to form an obtuse angle withthe body 1, the precise angle being determined by trial, so as to obtainthe best possible results with reference to sound-producing quality andexpenditure of a minimum amount of force. The opening 3 is preferably ofrectangular form and is located near one edge of the top, and themouthpiece springs from said top about in line with the outer edge ofthe opening 3. The mouthpiece 4 is flat and outwardly flared, its lowerside terminating in a downwardlycurved lip 5 to assist materially inholding the whistle in the mouth of the user when it is required to havethe hands free. By having the mouthpiece outwardly flared the air blowntherethrough is contracted and caused to enter the opening 3 with greatforce, thereby producing a loud and penetrating sound. The latterconstruction is preferred when forming the mouthpiece of sheet metal. Inthis construction the upper portion of the mouthpiece has itslongitudinal edge portions bent downwardly, to form side members, andsame are recurved to provide longitudinal grooves or channels, as shownat 6, so as to embrace and receive the longitudinal edge portions of thelower portion, the recurved portions 6 being clenched to secure theparts and soldered, if needs be, to form a substantial structure.

Within the purview of the invention the top 2 and body 1 may be of anyconstruction. In the specific form illustrated the top 2 is separablefrom the body 1 and the latter is flexible, being constructed of rubber,so as to admit of varying the sound by compressing the sides of the bodymore or less to vary the capacity and the notes emitted. The top is ofmetal and is provided with a rim 7 and in form presents the appearanceof a cap. The rubber or flexible body is cemented to the cappreferablyby having its upper portion inserted into the rim 7 andsecured thereto by rubber cement or other adhesive.

Having thus described the invention, what is claimed as new is In awhistle, the combination with a body having an opening in its top, and aflattened mouthpiece formed of upper and lower parts,

one of said parts having its side portions bent at approximately a rightangle thereto to form side members, the longitudinal edge portions ofthe side members being reourved to provide longitudinal grooves orchannels to receive and embrace the longitudinal edge portions of theother part, said other part being thereby spaced from the part havingthe side members aforesaid and having its outer end rounded and bentdownwardly to form a lip. 10 In testimony whereof I afiix my signaturein presence of two Witnesses.

FREDERICK L. JOHNSON. [n s.] Witnesses:

CLIFTON D. ALLEN, HENRY MARTIN.

